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iragen [17]
3 years ago
14

An isosceles trapezoid ABCD with height 2 units has all its vertices on the parabola y=a(x+1)(x−5). What is the value of a, if p

oints A and D belong to the x−axis and m∠BAD=60degrees?
Mathematics
1 answer:
True [87]3 years ago
5 0

Answer:

the value of a, if points A and D belong to the x−axis and m∠BAD=60 degrees is 2/√3

Step-by-step explanation:

Trapezoid ABCD with height 2 unit contain Points A and D which may be A(-1,0) and D(5.0)

Vertex of parabola is the point where parabola crosses its axis

Let suppose A and D are two points then draw altitude on them CE where C is on AD

As height of altitude has been given that is 2 then

total angle = 180 degrees

m∠BAD=60 degrees

m∠CEA =180 - 60 -90

             = 30

then the value for  AE = 2/√3.

y=a(x+1)(x−5).

where  2/√3 is right of -1 and 2 unit above x-axis

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What number divided by -7 is equal to -15​
steposvetlana [31]

Answer:

x = -105

Step-by-step explanation:

<u>What number</u> <u>divided by</u> <u>-7</u> <u>is equal to</u> <u>-15​</u>

         ∨                   ∨          ∨         ∨         ∨

         x                   ÷          -7         =        -15

Multiply -7 to both sides:

\frac{x}{-7}=15

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3 0
2 years ago
A ruby throated hummingbird beat its wings about 53 times each second about how many times does a ruby throated hummingbird beat
Sergeeva-Olga [200]
You would cross multiply 53 times 5 and divide by 1
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3 years ago
If y varies directly as x and y-21 when x<br> is 7, find x when y = -5.
klasskru [66]

Step-by-step explanation:

Since, y varies directly as x:

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6 0
2 years ago
Read 2 more answers
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RUDIKE [14]
RHS
=4x-27/0
=not defined=0

LHS
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3 years ago
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xeze [42]

Answer:

Step-by-step explanation:

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So the three ratios that are equivalent to 2 adults 5 children are

8 adults 20 children,

20 adults 50 children and

4 adults 10 children

4 0
3 years ago
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